The product of the roots of a quadratic equation is 36. If one of the roots is 4,which of the following could be the equation?
A. ² + 13 + 36 = 0
B. ² - 13 - 48 = 0
C. ² - 13 + 36= 0
D. ² + 13 - 48 = 0
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The product of the roots of a quadratic equation is 36. If one of the roots is 4,which of the following could be the equation?
A. ² + 13 + 36 = 0
B. ² - 13 - 48 = 0
C. ² - 13 + 36= 0
D. ² + 13 - 48 = 0
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Answer:
Answer will be x²-13x+36
knowing that one of the roots is 4 and using the product 36 because getting the product is c/a that means it is 36/1
also getting a number that we multiply with 4 becomes 36
(x-4)(x-9)
so that the roots will be:
x-4=0 so x= 4 & x-9=0 x= 9